{
  "@context": "https://freecostcalculator.com/api/cost/v1",
  "@type": "CostEstimate",
  "version": "1.0",
  "service": "deck",
  "serviceTitle": "Deck Building Cost Calculator",
  "category": "home-improvement",
  "state": "DC",
  "stateName": "District of Columbia",
  "lastUpdated": "2026-04-12",
  "confidence": "moderate",
  "methodology": "https://freecostcalculator.com/methodology/",
  "corrections": "https://freecostcalculator.com/corrections/",
  "source": "FreeCostCalculator.com",
  "license": "CC BY 4.0 with attribution",
  "costDrivers": {},
  "averageProjectCost": {
    "low": 4954,
    "mid": 9907,
    "high": 19815
  },
  "referenceEstimate": null,
  "inputs": [
    {
      "name": "sqft",
      "type": "number",
      "label": "Deck Area (sq ft)",
      "range": {
        "min": 50,
        "max": 2000
      }
    },
    {
      "name": "material",
      "type": "select",
      "label": "Decking Material",
      "options": [
        "wood"
      ],
      "range": {}
    }
  ],
  "links": {
    "calculator": "https://freecostcalculator.com/deck-cost-calculator/district-of-columbia/",
    "compare": "https://freecostcalculator.com/deck-cost-calculator/compare/",
    "allStates": "https://freecostcalculator.com/deck-cost-calculator/",
    "api": "https://freecostcalculator.com/api/cost/v1/deck/district-of-columbia.json"
  },
  "citation": {
    "text": "Deck Building Cost in District of Columbia: typical range $4,954 - $19,815. Source: FreeCostCalculator.com, updated 2026-04-12.",
    "url": "https://freecostcalculator.com/deck-cost-calculator/district-of-columbia/"
  }
}